Kevin, > There is a slight error here; the 'given order' is Zaptel, Asterisk then > libss7, which would not produce a working installation. So the correct order would be ? Zaptel LibSS7 Asterisk ? Please update me so that I can update the howto according. Thanks & Regards, Mitul Limbani, Founder & CEO, Enterux Solutions, The Enterprise Linux Company (TM), www.enterux.com